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134
CHEMICAL ENGINEERING
plunger is effective. For a first trial assume S = 100 ft. per minute, and allow 6 per cent for slip and rod. With this compute the approximate diameter of the plunger, select a suitable length of stroke and recalculate with correct piston speed derived from Table 1.
TABLE VII.óDISPLACEMENT OF A SINGLE DOUBLE-ACTING PLUNGER
Diameter of plunger, inches	Displacement based on 100 feet piston speed		
	Gallons per minute	Gallons per 24 hours	Cubic feet per second
y2	1.02	1469	0.002273
%	1.594	2295	0.003552
K	2.295	3305	0.005114
y*	3.124	4499	0.006061
i	4.080	5875	0.009091
IK	6.375	9180	0.014205
IK	9.180	13,220	0.020455
IK	12.495	17,992	0.027840
2	16.320	23,501	0.036364
2K	20.655	29,744	0.046020
2h	25.500	26,720	0.056820
2H	30.850	44,425	0 . 068740
3	36.72	52,880	0.0818
3H	49.98	71,980	0.1114
4	65.28	94,010	0.1455
4^	82.62	118,970	0.1841
5	102.00	146,900	0 . 2273
5J£	123.45	177,800	0.2757
6	146.90	211,500	0.3273
6K	172.40	248,250	0.3841
7	199.90	287,850	0.4454
7^	229.50	330,500	0.5114
8	261.10	373,700	0.5818
8K	294.80	424,500	0.6570
9	330.50	475,900	0.7364
9K	368.30	530,200	0.8207
10	408.0	587,500	0.909
11	493.7	711,000	1.100
12	587.5	860,400	1.309
13	689.5	992,900	1 . 536
14	799.7	1,151,500	1.782
15	918.0	1,322,000	2.045
16	1,044.5	1,504,000	2.322
17	1,179.0	1,698,000	2 . 627
18	1,322.0	1,903,500	2.946
19	1,473.0	2,121,000	3.282
20	1,632.0	2,348,000	3.636
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